[ltp] Everlasting Fan

Thomas Hartwig linux-thinkpad@linux-thinkpad.org
Tue, 14 Jun 2005 11:41:37 +0200


Hello,

unfortunately ATI still makes no advantages on linux, so I'm wondering
if anybody can give some deeper help on debugging the xorg provided
radeon driver.

My experiences are that the temperature of the GPU is the most biggest
problem related to the fan for my T40p. Typical values are:
CPU: 44°C GPU: 52°C HDD: 32°C PCI: 42°C. I have decided to turn off the
fan below 50°C, but independent of the output of X or console the
temperature is always at about 50°C or higher for the GPU.

The radeon driver has the nice option "DynamicClocks" which might alter
the power of the display. I'm wondering now if you can fine tune this in
a better way and see what is going on. I have already taken a small look
into the source but I'm afraid without much time I'm not able to
disassemble this ;-)
What would be helpful is: at what clock the GPU is always running and
what the strategy for the regulator is.
Is there anybody out there who might be interested in looking at or has
already done?

Perhaps I will contact the author of the code as well.

Best regards
Thomas